The standard division of the four seasons of the year into months, how to divide the months of the f

There are 12 months in the year, and people designate March, April, and May as spring; June, July, and August are designated as summer, and September, October, and November are designated as autumn; December, January, and February are designated as winter.

Spring, also known as spring, is the first season of the four seasons, referring to the period from the beginning of spring to the beginning of summer, including the beginning of spring, rain, stunning, vernal equinox, Qingming, and valley rain. It is the season of revival. In the Northern Hemisphere, the Gregorian calendar runs from March to May, while in the Southern Hemisphere it is from September to November.

Summer, the second of the four seasons, is the hottest season of the year in the Northern Hemisphere, and it is customary for our country to take the beginning of summer as the beginning of summer. The ancients put the lunar calendar.

April, May, and June are counted as "summer"; Today, people regard the three months of the Gregorian calendar as "summer."

Autumn is the harvest season, and many plants mature in the fall. Autumn temperatures drop significantly compared to summer. The lunar calendar runs from July to September from the beginning of autumn to the beginning of winter, and the solar calendar runs from September to November.

Winter is the coldest season, in the temperate and cold zones of the Northern Hemisphere, and winter is in the month.

It was Xu Kui who was shot at the end of "Gone Fire", and the last person to appear was the real Sun Ran. **I found out that Xu Kui has a younger brother named Sun Ran, who is a half-brother, and this younger brother often goes to the nursing home to visit Xu Kui's father, and often helps this nursing home with his wife (Sun Ran and Xu Kui are completely different, Xu Kui made himself exactly the same as Sun Ran through plastic surgery), Zhao Pengcheng has a bold idea that Sun Ran is Xu Kui!

This idea stunned everyone, because only Zhao Pengcheng found out that the real Sun Ran was severely allergic to alcohol, and Xu Kui was not, and by drinking with Sun Ran, this idea was quickly confirmed. (He is facing a huge drug dealer, and through clues to analyze the difference between the two people) then this fake Sun Ran quickly leaked out of the horse's feet, what is even more infuriating is that Sun Ran has a huge ice warehouse, which is to divide seafood fish, and in the process of transporting drugs, frozen fish will be used as a cover, and the number is unimaginable, and finally through the tracking of the youth team again and again, his life and death will be put out of the way, just to catch the huge drug trafficking agency behind it, In order to give more people a happy family, they paid a lot, and finally Xu Kui was executed in accordance with the law.

However, at the end of the finale, there was a suspense left for everyone, that is, when Tan Yang and his sister Tan Jing** who were traveling abroad, a "passerby" appeared behind her sister, and after the camera zoomed in, she found that it was a person who looked exactly like "Sun Ran". This gives everyone a lot of room for reverie, was Xu Kui who sent Sun Ran abroad to live a normal life? Or are Xu Kui and Sun Ran brothers both drug traffickers and committing criminal activities together?

Or maybe Sun Ran is a law-abiding person who just happened to appear? Is there something going to happen between Sun Ran and Tan Jing? All these reveries have whetted people's appetites.

People usually regard the beginning of spring, summer, autumn and winter as the beginning of the four seasons of the year, in fact, there are many divisions of the seasons: astronomy, meteorology, solar terms, etc.

Astronomical divisions.

The astronomical division method takes the spring equinox, summer solstice, autumn equinox, and winter solstice as the beginning of the four seasons;

Meteorological division.

Spring from March to May, summer from June to August, autumn from September to November, and winter from December to February.

Solar term division method.

The beginning of spring, summer, autumn and winter is the beginning of the four seasons.

These methods are simple and convenient, but they have a common drawback, which is that all parts of the country enter the same season on the same day. China has a vast territory, and the climate varies greatly from place to place, so it is obviously unreasonable to define the seasons by a uniform time period.

The change of seasons has made the otherwise beautiful earth extraordinarily colorful.

Is there a more scientific division?

Climatic seasons refer specifically to the division of seasons from the perspective of weather and climate.

The climate seasonality index is based on the temperature method, which was proposed by Mr. Zhang Baokun in 1934 and is still used in meteorological business. In ancient China, 5 days were called a wait, and the waiting temperature is the average temperature of 5 days. However, in the climatic season, instead of a fixed 5-day period, a 5-day moving average is used, that is, the average is calculated as a group of the current day and the previous 4 days.

According to the "Seasonal Division", the daily average temperature or sliding average temperature is greater than or equal to 10 and less than 22 in spring, the daily average temperature or sliding average temperature is greater than or equal to 22 in summer, the daily average temperature or sliding average temperature is less than or equal to 10 in autumn, and the daily average temperature or sliding average temperature is less than or equal to 10 in winter.

The four seasons of the year are spring, summer, autumn and winter.

3 months per season. Not only is the climate very different from region to region on earth, but the climate is also different in different seasons in the same region.

Spring is one of the four seasons of the year. In China, the beginning of spring is the beginning of spring (between February 2 and 5) and the end of spring is between May 5 and 7. In Europe and the United States, spring begins at the Chinese equinox and ends with the summer solstice. in Ireland.

February, March and April are designated as spring, in the Southern Hemisphere.

In general, September, October and November are designated as spring.

Causes of formation. How the seasons are formed.

The Earth's axis of rotation is the same as the Earth's orbital plane around the Sun (ecliptic plane.

There is an angle (23°26), so as the Earth revolves around the Sun, the position of the Sun directly on the Earth changes, from 23°26 N (Tropic of Capricorn) to 23°26 N (Tropic of Cancer).

When the sun is directly shining, the heat obtained by the earth's surface is high, and the temperature is high, which is summer; Conversely, when the sun is obliquely shining, the heat gained from the earth's surface is low, which is winter. When the sun shines directly into the Northern Hemisphere, it is summer in the Northern Hemisphere and winter in the Southern Hemisphere; Conversely, when the sun shines directly into the Southern Hemisphere, it is summer in the Southern Hemisphere and winter in the Northern Hemisphere.

When the sun reaches the Tropic of Capricorn, the winter solstice (around December 22) and the summer solstice (around June 22) are respectively. When the sun reaches the equator, the spring equinox (around March 21) and the autumn equinox (around September 21) are respectively.

Earth's axis of rotation.

The direct sun area is between the Tropic of Capricorn and the Tropic of Capricorn, so the sun in this area is always nearly direct, so the energy obtained from the sun is higher throughout the year, resulting in higher temperatures in the region that do not change much throughout the year, and the region is called tropical. In the tropics, there are no changes in the four seasons, and it is summer. It usually refers to the four seasons of the year, mainly in the temperate zone, that is, the Tropic of Cancer and the Tropic of Cancer to the Antarctic and Arctic Circles.

between the area. The Antarctic Circle is the southernmost line of latitude that the Sun can illuminate when it hits the Tropic of Capricorn, which is 66°34 S (latitude is interconnected with the latitude of the Tropic of Capricorn). Similarly, the Arctic Circle is located at 66°34 north latitude. Within the polar circles, there will be a polar night.

and polar daytime phenomena. Obviously, in the summer in the Northern Hemisphere, there is a polar day phenomenon in the Arctic Circle and a polar night phenomenon in the Antarctic Circle. Conversely, when it is summer in the Southern Hemisphere, the polar night phenomenon occurs in the Arctic Circle and the polar day phenomenon occurs in the Antarctic Circle.

1. Spring: The beginning of spring is the starting point, the spring equinox is the midpoint, and the beginning of summer is the end point. March, April, and May.

2. Summer: the beginning of summer is the starting point, the summer solstice is the midpoint, and the beginning of autumn is the end point. They are June, July, and August.

3. Autumn: The beginning of autumn is the starting point, the autumn equinox is the middle point, and the beginning of winter is the end point. They are September, October and November.

4. Winter: the beginning of winter is the starting point, the winter solstice is the midpoint, and the beginning of spring is the end point. They are December, January, and February.

Four Seasons: The Four Seasons refer to the four seasons that alternate in a year, namely spring, summer, autumn and winter, with three months each. The four seasons of the year are formed because the earth revolves around the sun.

Due to the existence of the yellow-red angle, the annual change of the direct point of the sun moving back and forth between the north and south latitudes of the earth is 23°26, which causes the seasonal change of the height of the sun at noon and the seasonal change of the length of day and night, resulting in the seasonal change of the amount of solar energy obtained in various places, so that the change of the four seasons is formed.

The four seasons are divided into: Spring, Summer, Autumn and Winter.

Spring, March, April, May; Summer, June, July, August; autumn, September, October, November; Winter, for December, January, February.

The four seasons alternate throughout the year, namely spring, summer, autumn, and winter. In astronomy, the division of seasons is determined by the position of the Earth in its orbit around the Sun. When the earth is in different positions of the orbit at different times of the year, different places on the earth receive different solar illumination, receive different heat from the sun, and produce seasonal changes and differences in cold and heat.

The seasons on Earth are not only periodic changes in temperature, but also in the length of day and night and the height of the sun. It influences or determines the rhythm of movement of many things in the Earth's environment, especially biological adaptation.

According to the latitude of China, the four quarters are divided into:

Q1: 3 May (Spring).

Second quarter: 6 August (summer).

Q3: 9 November (Autumn).

Q4: 12 February (winter).

In terms of temperate zones, especially in China's climate, the year is divided into four seasons, namely spring, summer, autumn and winter; And for savannahs there is only a dry season and a rainy season. In the cold zone, the four seasons are not only in winter, but also in the north and south poles.

The fundamental reason for the change of seasons is that the Earth's axis of rotation is not perpendicular to the plane of its orbit, and the angle of deviation is 23 degrees 26 minutes (yellow-red angle). In different seasons, the northern and southern hemispheres receive unequal sunlight and periodically.

The sunnier hemisphere is in the summer and the other half in the winter. Spring and autumn are transitional seasons, with the sun's direct point close to the equator, the sunshine in both hemispheres is equal, but the seasons follow the opposite trend – autumn in the southern hemisphere and spring in the northern hemisphere.

1. Spring: The beginning of spring is the starting point, the spring equinox is the midpoint, and the beginning of summer is the end point. March, April, and May.

2. Summer: the beginning of summer is the starting point, the summer solstice is the midpoint, and the beginning of autumn is the end point. They are June, July, and August.

3. Autumn: The beginning of autumn is the starting point, the autumn equinox is the midpoint, and the beginning of winter is the end point. They are September, October and November.

4. Winter: the beginning of winter is the starting point, the winter solstice is the midpoint, and the beginning of spring is the end point. They are December, January, and February.

The division of the four seasons is based on the rotation of the earth and the angle of inclination of the earth's axis. The year is usually divided into four seasons: spring, summer, autumn, and winter, and each season is about three months long. The specific month division is as follows:

Spring: March, April, May, Summer: June, July, AugustAutumn:

September, October, November Winter: December, January, and February It is important to note that the division of seasons is not very precise, and the timing of seasonal changes may vary slightly from region to region.

1. Spring: The beginning of spring is the starting point, the spring equinox is the midpoint, and the beginning of summer is the end point. March, April, and May.

2. Summer: the beginning of summer is the starting point, the summer solstice is the midpoint, and the beginning of autumn is the end point. They are June, July, and August.

3. Autumn: The beginning of autumn is the starting point, the autumn equinox is the midpoint, and the beginning of winter is the end point. They are September, October and November.

4. Winter: the beginning of winter is the starting point, the winter solstice is the midpoint, and the beginning of spring is the end point. They are December, January, and February.

1. Spring: The beginning of spring is the starting point, the spring equinox is the midpoint, and the beginning of summer is the end point. March, April, and May.

2. Summer: the beginning of summer is the starting point, the summer solstice is the midpoint, and the beginning of autumn is the end point. They are June, July, and August.

3. Autumn: The beginning of autumn is the starting point, the autumn equinox is the midpoint, and the beginning of winter is the end point. They are September, October and November.

4. Winter: the beginning of winter is the starting point, the winter solstice is the midpoint, and the beginning of spring is the end point. They are December, January, and February.

According to the solar calendar: the spring of each year is May; Summer is the month; Autumn is the month; Winter is the month.

The four seasons refer to the four seasons that alternate in a year, namely spring, summer, autumn, and winter, with three months each. The four seasons of the year are formed because the earth revolves around the sun.

Due to the existence of the yellow-red angle, the annual variation of the direct sun point moving back and forth between the north and south latitudes of the earth is 23°26, which causes the change of the height of the sun at noon and the change of the length of day and night, forming the change of seasons.

Variation pattern: From the spring equinox through the summer solstice to the autumn equinox, the northern hemisphere is in the summer half year, and the southern hemisphere is in the winter half year. During this period, the days are longer and the nights are shorter in the Northern Hemisphere, and the days are shorter and the nights are longer in the Southern Hemisphere; The North Pole is in the polar day, and the South Pole is in the polar night.

The height of the Sun north of the Tropic of Cancer is always greater than the mean and south of the Tropic of Cancer is less than the average. North of the Tropic of Capricorn, the sun rises over the horizon circle in the northeast and sets on the horizon circle in the northwest. On the equinox, the sun rises due east and sets due west all over the world.

From the autumnal equinox through the winter solstice to the equinox, the northern hemisphere is in the winter half year, and the southern hemisphere is in the summer half. During this period, the length of day and night, polar day and night, and solar altitude in the northern and southern hemispheres were all reversed. North of the Tropic of Capricorn, the sun rises over the horizon circle in the southeast and sets on the horizon circle in the southwest.